Bobbin



Patented Nov. i 27, 1923.

UNlTED STATES 11,435,704 PATENT vor-rice.

JACOB IKAU'FMANN, 0F IHILADELPHIA, PENNSYLVANIA, ABSIGNOR T0 STEEL HEDDLE MANUFACTURING (COMPANY, (QF PHILADELPHIA, PENNYLVANIA, A CORPORA- TION 011' QENNSYLVMIA.

BOBBIN.

Application tiled March 10, 11921. Serial No. 451,192.

To all whom t may concern.'

Be it known that JAoon KAUFMANN,

a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful lin rovements in Bobbins, of which the following is a specilication.

My invention relates to bobbins, and particularly lto that type ot bobbin which is used in large numbers in various branches of the textile industry. Heretofore, the most common form of such bobbins was turned from a solid block of Wood, but considerable difficulty is experienced in the use of such bobbins an account of portions of the flanges splitting oii". and through deformation on account of climatic con itions, causing the bobbin to Warp and to become otherwise defective.

'lo overcome these difficulties, various attempts have been made to provide bobbins with separately attached flanges, but such structures have been more or less unsatis,

factory in use, on account of openings often occurring at the joints between the several members of) which the same was made up, in which openings the thread or yarn would catch and foul. In other arrangements, on account of the nature of the structure, the 'Hanges would become loose, and in some instances Would bepermitted to rotate with respect to the barrel of the bobbin or with respect to each other.

The object, therefore, of my present invention is to provide an improved form of bobbin which will not be atfected b climatic changes, which will be relativelylight and inexpensive in its construction, yet durable in use which will be so constructed and arranged as to preclude the catching of the thread wound thereon in any seams or openings and in which the flanges will be securely held against rotation, not only with respect to the barrel portion, but with respect to each other.

v rlhe nature and characteristic features ot my invention will be more readily understood from the following description taken in connection with the accompanying drawin s Jforming part hereof, in which igure l is a perspective view or a hobbin embodying the main tentures ot my present invent1on;

Fig. 2 is a longitudinal central section vof fibre or other tough and dura tions being shown in elevation to moreV clearly illlustrate the `features of the construction; an(

Fig. 3 is a transverse section taken on the line 3-3 of Fig. 2.

Referring to the drawings, in the particular embodiment o't my invention therein shown, 5 is the barrel portion of the bobbin which comprises a tube, preterabl made bile 1unterial, properly treated so as to be iinpervious to the eects of moisture in thc atmosphere. Each end of the tube comprising the barrel portion 5 is internally beveled as at. 6, for a purpose to be presentlyv explained.

At each end of the barrel portion 5 there is mounted a tlange 7 each flange comprising a disc-like member havino' an annular thereof, certain parts of the interior porrecess as at 8 on its inner surtace, in win-h recess the end of the barrel portion 5 is seated. The annular recess 8 is shaped complemental to the end of the barrel portion 5, that is to say, the outermost surface of said recess is cylindrical and normal to the inner surface of the lange y7', while the innermost surface of said recess is inclined or conical in shape, so as to conform to the' internally beveled end surface of the barrel portion 5. By this arrangement, when suitable pressure is imparted to the ends ot 'the bobbin during the assembling of the same, each end of the barrel 5 will tend to expand and will be forced into a close` intimate tit in the rece 8 of the flange 7. ln this manner, the possibility of any open seam or crevice occurring at the `place of jointure between the ends ot the barrel and the anges will be precluded.

To provide means for holding the structure in its proper assembled condition, as Well also to provide 4a suitable journal for mounting the bobbin on the spindle of the textile machinery in connection with which the same is used, there is provded a metallic tube 9, centrally positioned and extending ltrom end to end of the structure. Each end ot the metallic tube 9 is provided with a series of longitudinal serrations 10 which are adapted to engage the central aperture il of the vflange 7, and, on account ot these serrations being provided at each end of the tube 9, the Hanges 7 will be effectively prevented Jfrom rotating with respect to the struc-ture, there is barrel as Well as with respect to each other. In order to securely hold the flanges 7 properly positioned with respect to the barrel 5, the central aperture 11 of each of the flanges T is chamfered as at 12, and the respective ends of the tube 9 are expanded in any suitable manner so as to spread. the same into engagement with the chamfered portion 12 of the aperture 1l of the flange 7, in this manner efl ctively preventing longitudinal disengagement of the various arts of the structure, as well also maintainmg the ends of the barrel 5 in close, intimatecontact with the surfaces of the recesses 8 of the flanges i. The ends of the tube 9 are finished flush with the outer surfaces of the disc-like flange. members 7.

It will be, seen that in the foregoing' )rovided a bobbin or spool which may e inexpensively constructed, and which will be light in weightI vet exceedingly durable an-d -useful for its intendedpurpose, the tube comprisingthc barrel portion 5, as well as the flanges 7, heilig made of a tough and durable material, such as fibre or the like. which is impervious to the effects of moisture in the atmosphere. The structure will not be subject to deformation or destruction on account of climatic conditions, nor will there be any possibility of the thread catching in any joints or fissures between the several parts of which the structure is made up. and the entire device will easily withstand the rough usage to which devices of this lcharacter are ordinarily subjected.

Having thus described the nature and characteristic features of m invention, what I claim as new and desire to secure by Letters Patent, is:

1. A bobbin comprising an intergral tubular barrel portion, flange members mounted at each end of said barrel portion comprising integral discs having annular recesses shaped complemental to the ends of' the barrel port-ion and in which recesses said ends are seated, and a uniting device comprising a tubular member mounted with in the barrel portion and having its ends serrated, said serrated ends engaging central apertures in the flanges.

2. A bobbin` comprisiner p an integral tubular barrel portion,

flange members mounted at each end of said barrel portion comprising integral discs having annular' recesses shaped complemental to the ends of the barrel portion and in which recesses said ends are seated, and a uniting device comprising a tubular member mounted within the barrel portion and having its ends serrated, said serrated ends engaging cen tral apertures in the flanges and said tube having its ends expanded to retain Said flanges in position.

3. A bobbin comprising an integral tubular barrel portion having its ends internall Y beveled, flange members mounted at each end of'v said barrel portion comprising integral discs having annular recesses shaped complemental to the beveled ends of' the barrel portion and in which recesses said ends are seated` and a uniting device comprising a tubular within the barrel portion and having its ends serrated, said serrated ends engaging central apertures in the flanges.

4. A bobbin comprising an integral tubular barrel portion having its ends internally beveled, flange members mounted at.

each end of said barrel portion comprising integral discs having annular recesses shaped complemental to the beveled ends of the barrel portion and in which recesses said ends are seated, and a uniting device comprising a tubular member mounted within the barrel portion and having its ends engaging central apertures in thc flanges and expanded to retain said flanges inv position.

5. A bobbin comprising an integral tubular barrel portion having its ends internally beveled, flange members mounted at each end of said barrel portion comprising integral discs having annular recesses shaped complemental t0 the beveled ends of the barrel portion and in which recesses said ends are seated` and a unit-ing device comprising a tubular member mounted within the barrel portion and having its ends serrated, said serrated ends engaging central apertures in the flanges and said tube having its ends expanded to retain said flanges in position.

In testimony whereof, I have hereunto signed my name.

JACOB KAU l4` MANN.

member mounted p 

